2882 results about "Blow molding" patented technology

The invention relates to the technical field of production debugging control, and discloses a production debugging control method and system for a plastic container. The method comprises the following steps: arranging a plurality of different sensors in plastic container blow molding equipment, and simultaneously collecting blow molding process parameter data; performing wavelet threshold denoising and anomaly identification on the blow molding process parameter data to obtain a process parameter anomaly identification result; establishing a transfer function matrix between the process parameters and quality indexes according to the process parameter anomaly identification result, and obtaining a target process parameter set through multi-target optimization; and inputting the target process parameter set into a double-integral enhanced recurrent neural network for parameter regulation and control calculation to obtain a process parameter adjustment amount. According to the method, early detection and accurate positioning of process abnormity in the blow molding process are realized, the quality fluctuation risk and the defective product rate are greatly reduced, and the technical problem that different response characteristic parameters are difficult to coordinate is solved.

The invention relates to the technical field of intelligent detection, and discloses an intelligent detection method, device and equipment for a plastic container, and the method comprises the following steps: carrying out multi-angle image acquisition on preforming, blank forming, multi-layer co-extrusion and final blowing forming stages of a plastic container blow molding process to obtain an original image data set; performing targeted preprocessing on the images in each forming stage to obtain an enhanced image data set, and performing feature calculation to obtain multilayer forming feature description data; establishing a feature mapping relationship among different forming stages to obtain defect position and type data; according to the blow molding equipment control system and method, full-process monitoring of the whole blow molding process is achieved, closed-loop control over defect detection and production parameter adjustment is achieved, and the production efficiency is improved. The technical problem that interface defects of all layers in the multi-layer forming process cannot be monitored in real time through a traditional detection method is solved, and the qualification rate of plastic containers is increased.

The invention relates to the technical field of high polymer material preparation, and discloses a bamboo fiber graft modified full-biodegradable composite membrane material preparation process which comprises the following steps: firstly, performing hot mixing and cooling on dried bamboo fiber powder, anhydrous citric acid, choline chloride, activated zinc oxide and pentaerythritol to prepare a bamboo fiber modified premix; then mixing the biodegradable polyester resin with the premix; adding the mixture into an extruder, injecting epoxidized soybean oil into a barrel through a liquid metering device, and performing melt extrusion granulation under a vacuum exhaust condition; and finally carrying out blow molding to form the film. Through in-situ reaction extrusion of multi-component synergism, surface grafting of bamboo fibers, chain extension of a polyester matrix and interface chemical bonding of the bamboo fibers and the polyester matrix are achieved, interface compatibility is effectively improved, degradation of the material in the processing process is inhibited, and the mechanical property and thermal stability of the composite film material are remarkably improved; the process is efficient and environment-friendly, and the cost is controllable.

The invention discloses a glass bottle blow molding device and a demolding method.The glass bottle blow molding device comprises a blow molding table and a pre-forming mold arranged on the blow molding table and further comprises an air flapping assembly and a triggering mechanism which are both arranged in the blow molding table; an air blowing pipe is further arranged in the pre-forming mold, and a shaping mechanism is arranged on the air blowing pipe. Through mutual cooperation of the blow molding table, the pre-forming mold, the air flapping assembly, the triggering mechanism, the air blowing pipe and the shaping mechanism, the triggering mechanism moves to sequentially trigger the air flapping assembly to rotate and be in butt joint with the pre-forming mold, and the air blowing pipe is matched to enable a blank in the pre-forming mold to form an opening; and after the shaping mechanism is triggered by the triggering mechanism to move upwards to the opening, the shaping mechanism rotates and is gradually unfolded, so that the opening of the ingredient can be shaped, the opening is uniform and smooth, the problem that the thicknesses of bottle openings of glass bottles are inconsistent due to various factors is solved, and the blow molding precision of the glass bottles is improved.

The invention relates to the technical field of data processing and three-dimensional model construction, in particular to an intelligent three-dimensional model design method and system based on small-opening press-blow molding equipment. The method comprises the following steps that an intelligent sensor is used for collecting parameters of small-opening press-blow forming equipment, and initial equipment parameter information is recorded; according to the initial equipment parameter information, establishing an equipment three-dimensional initial model by using computer aided design software; and acquiring characteristic data of the glass material drops, inputting the characteristic data of the glass material drops into the three-dimensional initial model of the equipment, simulating a press-blow molding process by utilizing simulation software, and carrying out influence evaluation on the simulated press-blow molding process to obtain a molding process evaluation result. Through a data processing technology, a three-dimensional modeling technology and an automatic control technology, various parameters of the small-opening press-blow molding equipment are associated and evaluated, and an intelligent three-dimensional model of the equipment is constructed; and the accuracy of control operation of the forming equipment is improved, so that the produced glass containers are kept consistent in specification.

The invention relates to the technical field of food packaging materials, and discloses a high-barrier recyclable eleven-layer co-extrusion film for food packaging and a preparation process thereof, and the preparation process comprises the following steps: preparing a compound which contains a hindered phenol group and a cinnamate group and has a compatible function; the preparation method comprises the following steps: compounding a compound which contains a hindered phenol group and a cinnamate group and has a compatible function with maleic anhydride grafted polyethylene resin PE-g-MAH to prepare a compatible component; the high-barrier recyclable eleven-layer co-extrusion film for food packaging is prepared by taking PA6, BVOH and PE as raw materials, improving the compatibility of BVOH and PE by utilizing compatible components, carrying out hydrolysis reaction on water-soluble BVOH to realize interlayer separation of PE and PA and adopting an eleven-layer co-extrusion blow molding film forming process. And the sanitary performance meets the national standard requirement, and the product is easy to recycle and conforms to the environment-friendly trend.

The invention relates to the technical field of plastics, in particular to an antibacterial food packaging bag and a preparation method thereof.The antibacterial food packaging bag is prepared by blending polylactic acid and polypropylene carbonate as a base film raw material, selecting a food-grade ADR chain extender as a chain extender, selecting one of butyl titanate and a titanate coupling agent as a compatibilizer and selecting composite hybrid cellulose as a broad-spectrum antibacterial agent; carrying out extrusion granulation and blow molding to obtain a base film; the preparation method comprises the following steps: taking microcrystalline cellulose-nano zinc oxide hybrid particles as hybrid cellulose, performing epoxidation on the hybrid cellulose by using epoxy chloropropane, and then grafting an amino acid-based Schiff base antibacterial agent by using epoxy-hydroxyl reaction; composite hybrid cellulose and modified castor oil-based waterborne polyurethane are used for preparing a protective coating, the surface of a base membrane is coated with the protective coating, and a green, environment-friendly, durable, antibacterial, hydrophobic and antifouling self-repairing surface is constructed.

The present application relates to the field of polyethylene films, and particularly discloses a multifunctional polyethylene breathable film and a preparation method therefor. The multifunctional polyethylene breathable film comprises the following raw materials in percentage by weight: 15%-30% of linear low-density polyethylene, 15%-40% of metallocene linear low-density polyethylene, 5%-10% of low-density polyethylene, 30%-50% of breathable masterbatch, 2%-10% of antistatic masterbatch, 2%-10% of antibacterial masterbatch, 5%-10% of flame-retardant masterbatch, and 2%-5% of color masterbatch. The preparation method for the multifunctional polyethylene breathable film comprises the following steps: mixing linear low-density polyethylene, metallocene linear low-density polyethylene, low-density polyethylene, breathable masterbatch, antistatic masterbatch, antibacterial masterbatch, flame-retardant masterbatch, and color masterbatch according to a formula ratio, performing melt extrusion, performing blow molding, drawing and stretching to form a film, and performing corona treatment. The prepared breathable film not only has good breathability and mechanical properties, but also has excellent antistatic, flame-retardant and antibacterial functions.

The utility model belongs to the technical field of wine bottle production, and particularly relates to a pressing and blowing device for wine bottle forming. Comprising a base, an air blowing assembly is arranged on the base, and the base is provided with a wine bottle forming auxiliary assembly matched with the air blowing assembly. According to the utility model, the rotating process is added on the basis of the traditional blow-press forming, and the centrifugal force during rotation is utilized, so that the glass in the softening stage can be distributed more uniformly, the thickness of the bottle body of the glass bottle is more uniform, weak stress points are reduced, and the rigidity and the product quality of the glass bottle are improved.

The present subject matter discloses an integrated door assembly for a prefabricated shed constructed from modular plastic components or panels. The door assembly comprises a door panel that includes a door side panel and a door body, which are integrally formed through blow molding. The door body is connected to the door side panel via an embedded folding groove, featuring a thinner plastic material at the fold to allow for flexibility and ease of movement. Additionally, the door assembly incorporates a pivotable frame bracket that encases the edges of the hinged, rotating panels, enhancing both strength and durability.

The invention relates to the technical field of PET geothermal films, and discloses a high-temperature-resistant geothermal film and a preparation method thereof.The high-temperature-resistant geothermal film is obtained through blending extrusion and blow molding of polyethylene glycol terephthalate, carboxyl polyetherimide and modified graphene. The carboxyl polyetherimide contains a benzoate structural unit similar to PET, the carboxyl polyetherimide and the benzoate structural unit form an alloy-like system with good compatibility, the modified graphene is good in dispersity and excellent in compatibility with PET, meanwhile, the modified graphene contains more carboxyl groups, and the carboxyl groups and carboxyl groups of side chains of the carboxyl polyetherimide interact with each other to form hydrogen bonds and the like; the graphene can be uniformly dispersed in a composite system of PET and carboxyl polyetherimide, so that a better reinforcing effect is achieved, and the tensile strength and the elongation at break of the PET composite geothermal film are remarkably improved. After high-temperature thermal aging, the geothermal film is high in retention rate of tensile strength and elongation at break and good in high-temperature resistance.

The invention discloses a light-weight manufacturing method and system for a PET bottle for food packaging, particularly relates to the technical field of PET bottle blank manufacturing, and aims to solve the problem that the subsequent blow molding quality is affected due to the fact that complex internal stress is generated in a bottle blank due to a rapid cooling process after injection molding in the prior art. Image information and temperature distribution data of a bottle blank after injection molding are obtained, geometric features and cooling rate differences are analyzed and recognized based on multi-physics coupling, a stress cause weight evaluation model is established to generate a stress distribution map, and then structural entropy increase factors under different temperature adjustment paths are simulated and calculated according to thermodynamic parameters, so that the temperature adjustment precision is improved. And carrying out partitioned temperature adjustment treatment on the bottle blank, and finally, carrying out constant-temperature and constant-humidity standing to sufficiently relax the stress. The internal stress distribution of the bottle blank can be effectively controlled, and the wall thickness uniformity and the mechanical property consistency of the light-weight PET bottle are improved.

The invention relates to the field of forming preparation of plastic state materials, in particular to a bio-based degradable photocatalytic film and a preparation method thereof. The invention provides a ternary composite system taking bacterial cellulose as a framework, chitosan as an interface adhesive and doped titanium dioxide as a photocatalytic active component, and continuous production of the film is realized by adopting an extrusion blow molding process for molding a plastic state material. The degradable photocatalytic film prepared by the method is high in mechanical property, high in photocatalytic capacity and rapid and thorough in degradation under natural conditions.

The invention relates to the technical field of industrial control systems, in particular to a multi-sensor self-adaptive control system and method of an injection-stretch-blow molding machine. The intelligent diagnosis module performs rapid detection and fine working condition identification by adopting a layered architecture, and outputs a diagnosis identifier and confidence; the decision-making module fuses expert knowledge and an online learning result, and determines an optimization coping strategy in combination with confidence; dynamically loading a control parameter set according to a strategy; the adaptive control module calculates an original instruction based on the parameter set and the data; generating a final signal according to the confidence coefficient smoothing instruction; and the execution interface module sends the signal to an execution mechanism to realize self-adaptive control. The invention further discloses a corresponding method. According to the system and the method, accurate diagnosis, differential decision and accurate strategy execution can be realized, smooth transition of control is ensured, and the control performance, the product quality and the operation robustness are remarkably improved.

The invention relates to the technical field of research and development of BIB liquid packaging materials, and discloses a PE-PA-based composite film, a manufacturing process and an application in BIB liquid packaging, and specifically comprises the following steps: synthesizing a PE-PA compatilizer; the preparation method comprises the following steps: carrying out ring-opening reaction on an epoxy functional group of a PE-PA compatilizer and an amino functional group or a carboxyl functional group at a PA resin molecular chain end to prepare PE-PA compatilizer grafted nylon resin, and carrying out physical anchoring action on a long-chain alkane structure on the PE-PA compatilizer grafted nylon resin and a PE resin molecular chain to prepare the PE-PA alloy master batch; low-density polyethylene resin is used as a raw material of a supporting layer, PE-PA alloy master batch is used as a raw material of a functional layer, metallocene polyethylene resin is used as a raw material of a heat sealing layer, a three-layer co-extrusion blow molding film forming technology is adopted, the PE-PA composite film is prepared, and the film product is excellent in comprehensive performance and can be used for manufacturing a BIB bag body.

The invention relates to the technical field of data processing, in particular to a data enhancement prediction method for the thermoelastic quality factor of a micro-hemispherical resonator, which comprises the following steps: S1, determining the radius size of the manufactured micro-hemispherical resonator, determining the simulation value range of the radius and thickness of an anchor point of the resonator, and determining the simulation value range of the thickness of the resonator; harmonic oscillators with different geometric boundary dimensions are established through high-temperature blow molding simulation; s2, thermodynamic simulation is carried out on the harmonic oscillator appearance obtained through blow molding simulation, and a harmonic oscillator thermoelastic quality factor data set is established; s3, performing data enhancement on the thermoelastic quality factor data set by adopting a cubic polynomial fitting method; and S4, training the enhanced thermoelastic quality factor data set by using a deep learning model to obtain a harmonic oscillator thermoelastic quality factor prediction model. According to the method, the bottleneck of scarcity of high-precision simulation data is broken through, unification of high precision and high efficiency is realized, the robustness and reliability of a prediction model are improved, and the method has wide engineering applicability and popularization value.

A blow molding system comprising an extrusion system including at least one extruder configured to extrude a parison having an interior cavity, a blow pin configured to extend into the interior cavity of the parison extruded from the extrusion system, and a mold assembly defining a mold chamber configured to receive the parison, the mold assembly including a plurality of mold cavities each facing the mold chamber and defining a profile of a sole component of an article of footwear. A method comprising the blow molding system forms a plurality of sole plates for an article of footwear.

The invention relates to the field of blow molding machine mold closing frames, and discloses a blow molding electric mold closing frame which comprises mold closing mechanisms, the mold closing mechanisms are fixedly installed on the two sides of a blowing mechanism of a blow molding machine, and each mold closing mechanism comprises a front mold plate, a middle mold plate and a rear mold plate; one end of the front mold plate is connected with a mold plate shaft, and the middle mold plate and the rear mold plate are installed on the outer wall of the mold plate shaft in a sliding mode. The middle mold plate can be driven by the driving device to be close to or away from the rear mold plate. The front mold plate and the rear mold plate are fixed together under the action of the mold plate shaft, the middle mold plate slides on the mold plate shaft, the lead screw is driven to rotate through the transformation ratio of the synchronous belt and the synchronous wheel under the rotation of the servo motor, and the lead screw sleeve is fixed to the middle mold plate and moves forwards under the action of the lead screw to achieve the mold closing action. A mold closing spring is installed between the lead screw sleeve and the middle mold plate, and mold clamping force is continuously generated through the mold closing spring in the actual production process.

The invention relates to the technical field of high polymer material processing, in particular to a blow molding method of a composite toughened film, which comprises the following steps: step 1, preheating matrix resin in preheating equipment; 2, feeding the mixed raw materials into a double-screw extruder for melt blending; 3, feeding the dried composite particles into a hopper of a single-screw blow molding extruder; 4, adjusting the air volume and the air pressure of the cooling system according to the monitoring result; and 5, the formed film pipe is folded into a flat shape through a guide component and led out through a traction roller, the traction speed and the extrusion speed are coordinated to control the traction ratio, corona treatment is conducted on the surface of the thin film to improve the surface energy, then rolling tension is controlled for rolling, and the rolling tension is controlled according to the elasticity and thickness of the thin film to prevent excessive stretching or loosening. The uniform distribution and proper compatibility of the composite toughening component improve the toughness of the film, and maintain the strength and barrier property of the film.

The invention relates to the technical field of degradable PE (polyethylene) packaging materials, and discloses a PE film, a preparation process and application in tissue packaging, and the PE film is prepared by the following steps: by taking 7-(diethylamino) coumarin-3-carboxylic acid, 2-naphthyl methanol and epoxy chloropropane as raw materials, carrying out esterification reaction and quaternization reaction to prepare an epoxidized biodegradable organic photosensitizer; based on an epoxy-hydroxyl ring-opening reaction mechanism, hydroxylated titanium dioxide nanoparticles and polyvinyl alcohol resin are respectively modified by using an epoxidized biodegradable organic photosensitizer, and compounding is performed based on a pi-pi accumulation effect between aromatic rings to prepare the ultraviolet light dependent photo-biodegradable component. According to the present invention, the ultraviolet light dependent light-biological degradation component, the compatible component and the composite auxiliary agent are added to the polyethylene matrix, and blow molding is performed to obtain the PE film, and the film product shows excellent light-biological dual degradation performance, has actual use value, and can be used in the tissue packaging field.

The invention discloses a film blowing machine for reducing wafer points of a PE (polyethylene) protective film, which comprises a film blowing mechanism and a die head with a feeding pipe, the die head is provided with an air ring, and the film blowing mechanism is used for blow molding of the PE protective film; the discharging end of the extrusion mechanism communicates with the feeding pipe, and the extrusion mechanism is used for melting and conveying raw materials; the filtering mechanism comprises a communicating pipe communicating with the feeding pipe and the discharging end of the extruding mechanism, a fine filtering screen is detachably connected into the communicating pipe, the advancing direction of the raw materials in the communicating pipe is the first direction, and the fine filtering screen hunches up in the direction opposite to the first direction. Raw materials are melted through the extrusion mechanism and extruded into the film blowing mechanism, and finally the PE protective film is formed through blow molding of the film blowing mechanism. In the process, the molten raw materials are filtered through the filtering mechanism, and the impurity content in the raw materials is reduced, so that the number of crystal points of the PE protective film finished product is reduced, and the quality of the PE protective film produced by the film blowing machine is improved. The invention discloses a using method of a film blowing machine.

The invention relates to the technical field of blow molding machine control, in particular to a blow molding machine control method, system and device capable of achieving uniform product wall thickness. The method specifically comprises the steps that the thermoplastic sensitivity of each monitoring area of a tubular parison is calculated according to the thermal deformation condition and the temperature distribution condition of the tubular parison; determining a corresponding wall side area of each tubular parison monitoring area on the mold, and obtaining an air supply deviation demand degree of each wall side area on the basis of the thermoplastic sensitivity according to the molding contour demand degree expression of each wall side area of the mold and the pressure presentation effect of the wall side; the offset amplitude compensation value is obtained according to the distribution difference of the air supply offset demand degrees of all the wall side areas so as to adjust the proportional gain coefficient, then the PID controller is combined, the air supply outlet can be adjusted adaptively according to the blow molding demand of all the areas in the blow molding fine adjustment stage, and the blow molding precision is improved. And the problem of poor blow molding effect caused by the fact that the air supply outlet always adopts a vertical downward blow molding mode on the tubular parison in the traditional blow molding process is avoided.

The invention relates to the technical field of blow molding equipment, and provides integrated blow molding equipment capable of recycling waste materials and a blow molding method.The integrated blow molding equipment comprises a base body; the extrusion device is arranged on the base body and can receive plastic particles manufactured by the plastic granulator and extrude the plastic particles into hollow parisons; the mold comprises two first half molds and two second half molds, the two first half molds can move away from each other and can move close to each other to a closed state to form a first blow molding cavity with a first upper opening, and the two second half molds can move away from each other to form a second blow molding cavity with a second upper opening; the first blow molding cavity and the second blow molding cavity can move close to each other to a closed state to form a second blow molding cavity with a second upper opening, and the sizes of the first blow molding cavity and the second blow molding cavity are different from each other; and the blow molding executing mechanism is used for conducting blow molding on the parisons in the first blow molding cavity and the second blow molding cavity to form the plastic bottles, and the equipment can meet the blow molding requirements of the plastic bottles of multiple specifications.

The invention discloses a tube drawing and forming device for quartz tube production, and relates to the technical field of glass tube drawing and forming, the tube drawing and forming device comprises a plastic melting and blow molding structure, the side end of the plastic melting and blow molding structure is provided with a temperature adjusting slotting structure in a communicating mode, and under the cooperation of a forming guide assembly and a stretching control assembly, when the stretching control assembly is used for stretching a quartz tube, the temperature adjusting slotting structure is opened; when a formed quartz tube is too large to cause follow-up deviation, the forming guide assembly is adjusted, aligned guide is formed by the forming guide assembly and the stretching control assembly, and then uniform-speed stretching is performed, so that under the cooperation of an open groove in the inner wall of an adjusting high-temperature-resistant rotating ring, a bottom plate, a return damping spring and a guide edge, the quartz tube can be quickly and stably formed. The guide edge is arranged on the periphery of the quartz tube to reinforce the heat stress groove formed in the periphery of the quartz tube, and meanwhile, the guide edge is in sliding connection with the heat stress groove formed in the periphery of the quartz tube in the forming process, so that intelligent positioning and stretching in the quartz tube stretching process are achieved, and the stability and shape precision of the quartz tube in the forming process are improved.

The invention relates to the technical field of single PE eleven-layer composite structure thin film material research and development, and discloses an eleven-layer ultrahigh-barrier polyethylene low-carbon environment-friendly film material and a preparation method thereof.The preparation method comprises the steps that a DOPO-based silane coupling agent is synthesized, the surface of sodium-based vermiculite is modified with the DOPO-based silane coupling agent to obtain flame-retardant modified vermiculite, and the flame-retardant modified vermiculite is modified with the DOPO-based silane coupling agent to obtain the eleven-layer ultrahigh-barrier polyethylene low-carbon environment-friendly film material. And the flame-retardant modified vermiculite is uniformly dispersed in an ethylene-vinyl alcohol copolymer matrix to prepare the flame-retardant barrier material. A flame-retardant barrier material is introduced into a PE co-extrusion film, and an eleven-layer co-extrusion blow molding film forming process is adopted to prepare an eleven-layer composite structure film which is made of a single PE material and has the thickness of 50-200 microns. The invention provides a preparation method of a single PE material eleven-layer composite structure thin film, and an eleven-layer thin film single product is prepared, has excellent barrier performance, belongs to ultrahigh barrier materials, and can be used as an optimal alternative selection in the field of dairy product packaging.

The invention discloses a preparation method of an ultra-high molecular weight polyethylene biaxially oriented film, and relates to the field of high polymer materials, and the preparation method comprises the following steps: step 1, mixing ultra-high molecular weight polyethylene and polyethylene wax to obtain a composition; 2, melting and plasticizing the obtained composition, and extruding to form a thin-wall tubular film after melting and plasticizing; 3, the thin-wall tubular film is subjected to blowing, traction and rolling, and the final ultra-high molecular weight polyethylene film is obtained. The melt flowability of the ultra-high molecular weight polyethylene is improved by utilizing the polyethylene wax, and the polyethylene wax can participate in crystallization of the ultra-high molecular weight polyethylene by controlling the blow molding process, so that the mechanical property of the ultra-high molecular weight polyethylene biaxially oriented film is improved.

The utility model relates to the field of visual detection equipment, in particular to blow molding part appearance visual detection equipment which comprises a detection box, the placement table is fixedly connected to the inner side of the detection box; the detection mechanism is arranged opposite to the placement table and is connected with the detection box; wherein the detection mechanism comprises a detection assembly, and the detection assembly is arranged on the inner side of the detection box; the adjusting assembly is arranged between the detection assembly and the detection box; the cleaning assembly is connected with the detection assembly and is used for blowing dust to the detection assembly; the brushing and sweeping assembly is connected with the detection assembly and connected with the cleaning assembly, the cleaning assembly is arranged and matched with the brushing and sweeping assembly, dust on the detection assembly can be rapidly cleaned, a photographing device can conveniently obtain a clear image, and the detection effect can be improved.

The invention belongs to the technical field of solid waste treatment, and particularly relates to a reprocessed plastic blow molding product quality stability self-adaptive adjusting system. And the blow molding process parameters are optimized by using neural network integration, firefly algorithm optimized fuzzy-PID control, deep reinforcement learning, Bayesian optimization and a chaos optimization algorithm. According to the algorithms, for enterprises with different scales and requirements, the product quality is effectively improved, the production efficiency is improved, the defective rate and the energy consumption are reduced, and diversified quality optimization strategies are provided for the regenerated plastic blow molding industry.

The invention relates to a blow molding part taking-out and blanking edge removing device which is characterized in that a molded plastic part taking-out mechanism comprises a linear module, an overhanging arm and a material receiving groove and is used for receiving molded plastic parts falling off after a mold is opened by a mold closing mechanism when the material receiving groove moves to an upper working position and conveying the molded plastic parts to a lower working position; the discharging edge removing mechanism is arranged on the right side, located on the lower station, of the material receiving groove and comprises two oppositely-arranged plastic part pressing assemblies and two oppositely-arranged edge removing assemblies. The base plate is provided with a hollowed-out hole allowing the discharging edge to pass through, and the waste output mechanism is arranged below the hollowed-out hole. And the molded plastic part conveying mechanism adopts a belt type conveying mechanism which is arranged along the left side and the right side, and a conveying belt is arranged in a side standing manner and is used for conveying the molded plastic part which is moved to the next station through the molded plastic part taking-out mechanism to the discharging edge removing mechanism and conveying the molded plastic part of which the discharging edge is removed to the inlet end of the tail end output mechanism, so that the output of the molded plastic part is realized. The device is compact in structure and suitable for high-speed multi-mode blow molding production.